Constructing wall in Clash of Clans

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Consider yourself as a chief in Clash of Clans game. You are given a village area of size m x n. There will be obstacles in the village area where the wall cannot be built. Now the task is to find the perimeter of the largest rectangular wall that can be built in the village area. (NOTE : Consider there are no buildings built, only obstacles are there in the village area. Each obstacle in the vil

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solution.cppC++17

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